ICHNEUMON FLIES— ASHMEAD. 59 



;^(). Metathorax not completely areolated y,7 



INTctathorax completely areolated. 



Clypeus quite depressed; vertex very narrow; eyes strongly convergent 

 anteriorly; areolet defined but open behind; abdomen with trans- 

 verse impressions only on the first four segments; ventral valve 

 somewhat jirominent, but still fur from tip of the abdomen. 



(384) Pdtitrles Forster. 



( 'ly pens subc.on vex; vertex broad; eyes not convergent anteriorly; areolet 



wholly wanting, the submediau cell longer than the median, the 



transverse median nervure in hind wings broken far below the 



middle; abdomen without transverse impressions, closely punctate, 



opaque (385) PolyspMnctomorpha Ashmead, new genus. 



(Type, PolyspMnctomorpha luggeri Ashmead, manuscript). 

 37. Abdomen as in Pimpla, the terminal tergites not prolonged ventrally and not 



inclosing or hiding the terminal urites 38 



Abdomen with the terminal tergites prolonged beneath and liiding the terminal 

 urites, or foruiing a cylinder from which projects the hypopygium 

 that extends far beyond the tip of the abdomen; face not narrowed 

 toward the mouth; eyes not, or only faintly, emarginate within ; legs 

 moderately stout, the claws long, pectinate; ovipositor scarcely 

 half the length of the abdomen; body always marked with red. 



(386) CUstopyga Gravenhoi*st. 

 3S. Transverse cubital nervure present, the first abscissa of the cubitus forming 



with it a distinct angle 39 



Transverse cubital nervure wanting, the first branch of the cubitus being inter- 

 stitial with the first aliscissa of the radius. 

 Transverse median nervure in hind wings broken; abdomen witli the im- 

 pressions on the segments very feeble or faint. 



(387) Acrodactyla Haliday = Oxyrrhexis Forster. 

 Transverse median nervure in hind wings straight, not broken; abdomen 

 with the impressions on the segments distinct. 



(388) Zaiypota Forster. 



39. Clypeus normal, not projecting into a snout-like ledge anteriorly 40 



Clypeus abnormal, as viewed from the side, projecting forward into a snout- 

 like ledge. 



Abdomen subpetiolate, closely opaquely punctate, tlie segments without 

 distinct, transverse impressions; transverse median nervure in hind 

 wings broken far below the middle. 



(389) Zarhynchus Ashmead, new genus. 

 (Type, Tryphon ? nasutus Cresson.) 



40. Face medially tul)erculate; mesonotum trilobed; metanotum very short, with 



an apical transverse carina, slightly interrupted medially, the pos- 

 teriorly face very finely, transversely striate; metanotum and the 

 first four abdominal segments clothed with a dense sericeous 



pubescence (390) Swjrofttolns Kriechbaumer. 



Face normal; mesonotum not trilobed. 



Metanotum with a central longitudinal furrow; abdomen witli the trans- 

 verse impressions on the segments well defined, the first segment 

 much longer than wide at apex; last joint of tarsi thickened imme- 

 diately from the base, not longer than the third; basal joint of hind 

 tarsi not longer than the two following joints; onychium large, 

 unusually developed (391 ) Polysphincta Gravenhorst. 



Metanotum iv'dJiout an areola, at apex trilobed or clavate; abdomen with 

 the transverse impressions not sharply defined, the first segment 

 not longer than wide at ajH'x; last joint of tarsi somewhat thickened 



